[MacPorts] #35862: dmd, dmd-tools, druntime, phobos: update to 2.060; simplify

[MacPorts]

#35862: dmd, dmd-tools, druntime, phobos: update to 2.060; simplify
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  Reporter:  ryandesign@…                      |      Owner:  takeshi@…
      Type:  update                            |     Status:  new
  Priority:  Normal                            |  Milestone:
 Component:  ports                             |    Version:  2.1.2
Resolution:                                    |   Keywords:  haspatch
      Port:  dmd, dmd-tools, druntime, phobos  |
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Comment (by ryandesign@…):

 dmd-tools is now using the github portgroup, but could still use further
 cleanup, such as:

  * remove the `dlang` variable since you already have the `github.author`
 variable with the same value
  * remove the `realname` variable and just set it directly in the
 `github.setup` line; then you can use the `github.project` variable
 wherever else you need it
  * remove the `foreach` loop in the `destroot` block; use `eval xinstall
 -W` instead
  * use `system -W ... "..."` instead of `system "cd ...; ..."`

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Ticket URL: <https://trac.macports.org/ticket/35862#comment:7>
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